M36-4 X 170mm 六角頭螺絲 | 10.9級鋼原色 | 部分螺紋 (2 / 包)

Used these on a heavy press assembly. The 10.9 steel rating gives real confidence under high torque, and the 170mm length was perfect for our application. No issues at all.

The partially threaded design made it much easier to start these into a deep blind hole on our press. The hex head grabbed cleanly with a socket, and the 170mm length was perfect for the heavy frame we were bolting together.

Had to torque these 10.9 bolts to spec for a hydraulic press rebuild—they held up without any deformation. The partially threaded shank made alignment easier than fully threaded alternatives. Exactly what I needed for heavy-duty assembly.